#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <assert.h>
unsigned int My_strlen(char arr[])
{
	unsigned int cn = 0;
	assert(arr != NULL);
	while (arr[cn] != '\0')
	{
		cn++;
	}
	return cn;
}
int main()
{
	char arr[] = "abcdefg";
	printf("%d\n", My_strlen(arr));
	return 0;
}